|City/Municipality|No. of Barangays|Area (km²)|Population (2010 Census)|Pop. density (per km²)|
|---|---|---|---|---|
|Angono|10|26.22|102,407|3,905.68|
|Antipolo|16|306.10|677,741|2,214.12|
|Baras|10|84.93|32,609|383.95|
|Binangonan|40|66.34|249,872|3,766.54|
|Cainta|7|42.99|311,845|7,253.90|
|Cardona|18|28.56|47,414|1,660.15|
|Jalajala|11|44.12|30,074|681.64|
|Morong|8|37.58|52,194|1,388.88|
|Pililla|9|69.95|59,527|850.99|
|Rodriguez|11|312.70|280,904|898.32|
|San Mateo|15|55.09|205,255|3,725.81|
|Tanay|19|200.00|98,879|494.3|
|Taytay|5|38.80|288,956|7,447.32|
|Teresa|9|18.61|47,163|2,534.28|

Question: how many cities have at least 10 barangays
Answer: 9